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r-ruslan [8.4K]
3 years ago
14

Find the mean (average) of each set of numbers. Round your answer to the nearest tenth 12 18 5 8 15 2 9 17 1

Mathematics
2 answers:
umka2103 [35]3 years ago
8 0

Answer: 9.7

Step-by-step explanation:

labwork [276]3 years ago
6 0

Answer:

12+18+5+15+2+9+17+1=87

87 divided by 9 equals 9.67

Step-by-step explanation: It's like average so you find the sum of the numbers and divide by the total numbers you're given

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Adding fractions with unlike denominators<br>​
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3. Suppose you are testing H0 : µ = 20 vs H1 : µ &gt; 20. The sample is large (n = 71) and the variance, σ 2 , is known. (a) Fin
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Answer:

We reject the null hypothesis.

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 71

Population variance is known.

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The null and alternate hypothesis are:

H_{0}: \mu = 20\\H_A: \mu > 20

We use one-tailed z test to perform this hypothesis.

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Now, z_{critical} \text{ at 0.08 level of significance } = 1.41

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drek231 [11]

Answer:

<h2><em><u>x</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>36</u></em></h2>

Step-by-step explanation:

\frac{3}{4} x -  \frac{2}{3} x - 4 =  \frac{1}{6} x - 7

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=  >  \frac{ - 1}{12} x =  - 3

=  > x =  - 3 \times ( - 12)

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